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Speed/Storage Computer Trends Sizes of Computers

Speed/Storage Computer Trends Sizes of Computers. Computer Technology. Changes in Computers over the Past 50 years. Computers are SMALLER From room size to pocket size Computers are FASTER Billions of cycles per second Computers are LESS EXPENSIVE

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Speed/Storage Computer Trends Sizes of Computers

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  1. Speed/StorageComputer TrendsSizes of Computers Computer Technology

  2. Changes in Computers over the Past 50 years • Computers are SMALLER • From room size to pocket size • Computers are FASTER • Billions of cycles per second • Computers are LESS EXPENSIVE • Price goes down as technology becomes more available

  3. Trends for the Future • Computers will continue to get smaller and faster. • Even more people will have access to computers. • Voice recognition will get better and be used more widely. • Security for computers will be an increasing problem. • The internet will grow even larger.

  4. What trends do you see for the future? • Artificial Intelligence? • Computer Implants in Pets or Children? • Virtual Vacations? • Speech recognition? • Virtual keyboard? (laser projection) • ??????

  5. Speed • Measured in Hertz • Megahertz (MHz) millions of cycles per second • Gigahertz (GHz) billions of cycles per second

  6. SizeMeasuring Storage and Memory • Bit • Bytes • Kilobyte* One Thousand Bytes • Megabyte* One Million Bytes • Gigabyte* One Billion Bytes • Terabyte* One Trillion Bytes *approximately

  7. Internal Storage / Memory • RAM • Random Access Memory • Temporary Storage for Current Application • Data is lost if not saved • ROM • Read Only Memory • Cannot be altered or erased by user

  8. Computers for Home and Personal Use • Affordable, small units that can be used at home OR at work.

  9. Also called: Handheld PDA Cost: $100 - $500 Palm

  10. Also called a PC Portable Cost $600 - $3,000 Laptop or Notebook

  11. Also called PC Cost: $500 - $1,500 Desktop

  12. Computers for Business • Used in addition to or in conjunction with PCs, laptops, palms, etc.

  13. Sometimes used as a server for a small – medium sized network. Dumb terminals are frequently attached it. Cost: $10,000 and up Mini Computer

  14. Used as a server for medium to large businesses or organizations such as banks that handlemillions of transactions a day. Cost: $100,000 and up Mainframe

  15. Largest, most powerful computers used today. Weather forecasting Air Traffic Control NASA Government Cost: $ Millions Super Computer

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